System Functional Block Diagram - Toshiba Strata DK24 Installation And Maintenance Manual

INSTALLATION-SYSTEM DESCRIPTION
SECTION 400-096-202
SEPTEMBER 1992
LOOP START LINES
• FIC: 02LS2
• USOC: RJ14C
• REN: 0.2B
CENTRAL OFFICE/
CENTREX/PBX
E&M TIE LINES
• FIC:
2-W; TL11M
4-W; TL31M
• USOC:
2-W; RJ2EX
4-W; RJ2GX
• REN:
N/A
AMPLIFIED PAGE OUTPUT (3 WATTS)
MUSIC SOURCE: EXTERNAL ZONE PAGE
BACKGROUND MUSIC
DOOR LOCK OR BGM MUTE CONTROL RELAY
NIGHT BELL OR MOH (CONTROL RELAY)
ALARM RELAY SENSOR
EXTERNAL ZONE PAGE RELAYS (4 ZONES)
EXTERNAL PAGE AMPLIFIER
MUSIC SOURCE: BACKGROUND MUSIC
AND/OR MUSIC-ON-HOLD
FIGURE 2-10

SYSTEM FUNCTIONAL BLOCK DIAGRAM

MDF
PROGRAMMING TERMINAL OR MODEM
CALL ACCOUNTING DEVICE
OR PRINTER
MAIN DISTRIBUTION
FRAME (MDF)
LINE
3 AND 4
2-PAIR
*
MOD CORD
LINE
1 AND 2
2-PAIR
*
MOD CORD
MODULAR
BLOCKS
3-PAIR
*
MOD CORD
LINE
4
*
3
*
2
3-PAIR
*
MOD CORD
1
*
TTY
*
SMDR
OPTION INTERFACE PCB
25-PAIR AMPHENOL
(PIOU/PEPU)
3-PAIR
OR
MODULAR
SPRING TERMINAL STRIP
CORDS
(PIOUS)
*
3-PAIR
MODULAR
JACK
MAIN
CONTROL PCB
TWISTED PAIR
MICRO-
PROCESSOR
MOH/BGM (68000)
INPUT SCREW
TERMINAL
MOH/BGM
VOLUME
TWISTED PAIR
CONTROL
2-10
DKSU 24/56/96
PCOU
3 dB
4
SW
LOOP START
3 dB
3
LINE PCB
SW
(4 CIRCUITS)
3 dB
*2-PAIR 2
SW
MODULAR
JACK
3 dB
1
SW
PEMU
2/4
4
SW
E&M
TIE-LINE
2/4
3
PCB
SW
2 OR 4 WIRE
TYPE 1
(4 CIRCUITS)
2/4
2
SW
*3-PAIR
2/4
MODULAR
1
SW
JACK
PIOU/PIOUS/PEPU
IMDU
(OPTIONAL BUILT-IN
MAINTENANCE MODEM)
PCTU
ROM
CRCU
(OPTIONAL)
RAM
DTMF
PCM SWITCH
RECEIVER
(4 OR 8
CIRCUITS)
SYSTEM TONES
32 CH
CONF SW